#include<stdio.h>
int main()
{
	printf("hello!world!\n");
	int a = 33;
	char arr1[] = {'a','b','c'};
	char arr2[] = "abc";
	printf("%d\n", a);
	printf("%c\n", 'a');
	printf("%f\n", 3.1214);
	printf("%c\n", 80);
	printf("%s\n", arr1);
	printf("%s\n", arr2);
	return 0;
}